Description : 1. A ray of light travelling in air enters obliquely into water. Does the light ray bends towards the normal or away from the normal? Why? -Physics-10
Last Answer : The light ray bends towards the normal. When a light ray enters from an optically rarer medium (which has low refractive index) to an optically denser medium (which has a high refractive index), ... denser than air, a ray of light entering from air into water will bend towards the normal.
Description : When light moves from air to water the ray of light bends ________ the normal. a) away b)towards c)along d)no change
Last Answer : b)towards
Description : When light enters an optically denser medium, the light ray: w) bends away from a normal to surface x) passes through unbent y) bends towards a normal to surface z) none of the above
Last Answer : ANSWER: Y -- BENDS TOWARDS A NORMAL TO SURFACE
Description : Plant bends towards the source of light on account of the movement of curvature known as?
Last Answer : phototropism
Description : Consider the following statements and select the correct answer from the codes given below: 1. Viruses are obligate parasites and cannot be cultured on a synthetic medium 2. The red snow phenomenon observed in some alpine and arctic regions is ... (a) 1, 2 and 4 (b) 2 and 4 (c) 2 and 3 (d) 1 and 3
Last Answer : Ans:(d)
Description : The curved body of water formed when a meandering river reshapes and cuts off one of its bends is called: w) an Essing pond x) an Oxbow lake y) a Swensen pool z) a Groovy pool
Last Answer : ANSWER: X -- AN OXBOW LAKE
Description : When a ray passes through a prism ______. A. It goes undeviated B. It remain parallel to a base C. It bends towards the base D. None
Last Answer : C. It bends towards the base
Description : When a light ray travelling in glass is incident on an air surface, A. it will refract away from the normal B. some of the light may be reflected C. all of the light may be reflected D. two of A, B, and C E. all of A, B, and C
Last Answer : E. all of A, B, and C
Description : A water tank appears shallower when it is viewed from top due to – (1) rectilinear propagation of light (2) reflection (3) total internal reflection (4) refraction
Last Answer : (4) refraction Explanation: This phenomenon is because of refraction of light. The lines of sight intersect at a higher position than where the actual rays originated. This causes the water to appear shallower than it really is.
Last Answer : (4) refraction Explanation: This phenomenon is because of refraction of light. The lines of sight intersect at a higher position than where the actual rays originated. This causes the water to appear ... depth that the water appears to be when viewed from above is known as the apparent depth.
Description : A water tank appears shallower when it is viewed from top due to (1) rectilinear propagation of light (2) reflection (3) total internal reflection (4) refraction
Last Answer : refraction
Description : Consider the following statements 1. Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons. 2. Ammonia can be liquefied at ambient temperatures and at low pressures. 3. Chlorofluorocarbons are ... 3 only (b) 2 and 3 only (c) 1, 2 and 3 (d) 3 only
Last Answer : Ans:(a)
Description : Abstraction and encapsulation are fundamental principles that underlie the object oriented approach to software development. What can you say about the following two statements? I. Abstraction allows us to focus on what something ... and II are correct. (3) Only II is correct. (4) Only I is correct.
Last Answer : (1) Neither I nor II is correct.
Description : Anil after travelling 6 km towards East from his house realized that he has travelled in a wrong direction, lie turned and travelled 12 km towards West, turned right and travelled 8 km to reach his office. The straight distance of the office from his house is: (A) 20 km (B) 14 km (C) 12 km (D) 10 km
Last Answer : Answer: D
Description : My penis bends slightly up and slightly to the left is this normal?
Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want
Description : Consider the following statements The general depth of scour calculated by Lacey's formula in a river represents the depth below the: 1. Maximum flood level in the river 2. Minimum flow water level in the river 3. Normal flow water ... 2, 3 and 4 b) 1, 2 and 3 only c) 2, 3 and 4 only d) 1 only
Last Answer : d) 1 only
Description : Why is a water tank appears shallower when it is viewed from top? -Do You Know?
Last Answer : The bending of light (i.e. refraction of light) as it moves from water to air makes the water tank appear to be less shallower than its real depth.
Description : Why does water tank appear shallower when viewed from the top? (1) Due to reflection (2) Due to refraction (3) Due to diffraction (4) Due to total internal reflection
Last Answer : (2) Due to refraction Explanation: Water in a swimming pool or water tank appears shallower than its depth because of the refraction of light. The light travels straight as long as it is in the water, but if it emerges obliquely from the water into the air it is bent downward toward the surface.
Description : A water tank appears Shallower when it is viewed from top due to –
Last Answer : Refraction of Light
Description : Why is a water tank appears shallower when it is viewed from top?
Last Answer : Due to Refraction
Description : Consider the following statements: 1. Organic matter decreases the permeability of a soil. 2. Entrapped air decreases the permeability of a soil. Which of these statements are correct? (a) 1 only (b) 2 only (c) Both 1 &2 (d) Neither 1 nor 2
Last Answer : (c) Both 1 &2
Description : When theangle of incidenceis _______ the critical angle, the light beam bends along the interface. A) more than B) less than C) equal to D) none of the above
Last Answer : equal to
Description : Climber bends forward while climbing a mountain.
Last Answer : 1- Drops his weight forward and uses the gravity effect to get a pull forwards. 2- The weight on the limbs is also lessened, so they get tired a little late then otherwise.
Description : While designing hair pin bends on highways, the minimum (A) Designed speed is 20 km/hour (B) Gradient is 1 in 40 (C) Gradient is 1 in 200 (D) All the above
Last Answer : Answer: Option D
Description : These bends are caused by excessive pressure and tension and generally occur while fiber are bent during handling or installation. ∙ A. microbending ∙ B. macrobending ∙ C. constant-radius bending ∙ D. kinks
Last Answer : C. constant-radius bending
Description : These bends are caused by excessive pressure and tension and generally occur while fiber are bent during handling or installation.
Last Answer : constant-radius bending
Description : The pond appears shallower from its real depth due to –
Last Answer : Refraction
Description : When CO2 concentration in blood increases breathing becomes (a) shallower and slow (b) there is no effect on breathing (c) slow and deep (d) faster and deeper.
Last Answer : (d) faster and deeper.
Description : Discharge curve may be extended by logarithmic method if (A) Cross section of river is uniform (B) River is broader and shallower (C) River is of any type (D) None of these
Last Answer : Answer: Option A
Description : Consider the following statements: 1. Propagation of a nerve impulse in a myelinated nerve fibre is different from that of unmyelinated fibre. 2. The impulse actually travels by leaping through the nodes of Ranvier in an unmyelinated fibre 3. ... incorrect? (a) 1, 2 (b) 1, 3, 4 (c) 2 only (d) 2, 3
Description : Light bends around sharp corners as a result of w) refraction x) reflection y) diffraction z) dispersion
Last Answer : ANSWER: Y -- DIFFRACTION
Description : The sun remains visible for some time after it actually sets below the horizon. This happens due to 1. atmospheric refraction 2. scattering of light 3. dispersion Which of the above statements is/are correct? (a) 1 only (b) 1 and 2 (c) 1 and 3 (d) 1, 2 and 3
Description : If one looks at a point P on the bottom of a swimming pool, one sees an image point P prime. Is the image point, P prime, a real or a virtual image?
Last Answer : ANSWER: VIRTUAL
Description : Consider the following statements S1 and S2 : S1 : A hard handover is one in which the channel in the source cell is retained and used for a while in parallel with the channel in the target cell. S2 : A soft handover ... and S2 is true. (C) Both S1 and S2 are true. (D) Both S1 and S2 are not true.
Last Answer : (D) Both S1 and S2 are not true.
Description : Consider the following statements: 1. Normal diet should contain 75gm of fat. 2. Fatty acids should be a part of human diet. 3. The cells of the human body cannot synthesise any fatty acids. 4. Deficiency diseases develop due to the absence ... correct? (a) 1, 2 (b) 2, 3 (c) 1, 2, 3, 4 (d) 1, 2, 4
Last Answer : Ans:(b)
Description : Consider the following statements: 1. Over the oceans there is more evaporation than precipitation. 2. On land it is more precipitation than evapo-transpiration. Which of these statements are correct? (a) Both 1 & 2 (b) Neither 1 nor 2 (c) 1 only (d) 2 only
Last Answer : (a) Both 1 & 2
Description : Consider the following statements: 1. The atmosphere of the primitive earth was reducing 2. The primary source of energy for the chemosynthetic reactions on earth that led to the origin of life was the solar energy 3. Liquid water did not ... 1 and 2 (b) 1 and 4 (c) 1, 2, and 3 (d) 1, 3, and 4
Description : Consider the following statements regarding relational database model: (a) NULL values can be used to opt a tuple out of enforcement of a foreign key. (b) Suppose that table T has only one candidate key. If Q is in 3NF, then it is ... true. (C) (b) and (c) are true. (D) (a), (b) and (c) are true.
Last Answer : (D) (a), (b) and (c) are true.
Description : Consider the following statements: 1. when an electric bulb is switched on, the resistance of its tungsten filament increases. 2. the resistance of pure metals increases on heating. Which of the above statements is/are correct? (a) Both 1 and 2 (b) only 1 (c) only 2 (d) Neither 1 nor 2
Description : Consider the following statements: 1. A flute of smaller length produces waves of lower frequency. 2. Sound travels in rocks in the form of longitudinal elastic waves only. Which of the statements given above is/are correct? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2
Description : Consider the following statements: 1. In a direct-to-home (DTH) system, the viewer dish antenna picks up signals from the satellite directly. 2. Cable operators receive signal from the satellite on large community dish antennas and ... ? (a) Only 1 (b) Only 2 (c) Both 1 and 2 (d) Neither 1 nor 2
Last Answer : Ans:(c)
Description : Consider the following statements: 1. Balaghat is known for its diamond mines. 2. Majhgawan is known for its manganese deposits. Which of the statements given above is/are correct? [IAS 2007] (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2
Last Answer : Ans: (d)
Description : Consider the following statements: 1. Gondwana coal is a laminated, bituminous coal. . 2. Gondwana coal is completely free from moisture, sulphur and phosphorus. Which of the statements given above is/are correct? [IAS 2008] (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2
Last Answer : Ans: (a)
Description : Consider the following statements: 1. In India, groundnut crop is raised mostly during the Khartf season under rainfed conditions. 2. In India, tobacco is cultivated only in black cotton soils. Which of the statements given above is/ ... ] (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2
Description : Consider the following statements: 1. Chikmagalur is well-known for sugar production. 2. Mandya is well-known as a coffee-producing region. Which of the statements given above is/are correct? [IAS 2008] (a) 1 only (b) 2 only (c) Both 1and 2 (d) Neither 1 nor 2
Description : Consider the following statements: 1. India ranks first in the world in fruit production. 2. India ranks second in the world in the export of tobacco. Which of these statements is/are correct? [IAS 2003] (a) Only 1 (b) Only 2 (c) Both 1 and 2 (d) Neither 1 nor 2
Last Answer : Ans: (c)
Description : Consider the following statements: 1. India is the original home of the cotton plant. 2. India is the first country in the world to develop hybrid cotton variety leading to increased production. Which of these statements is/are correct ... ] (a) Only 1 (b) Only 2 (c) Both 1 and 2 (d) Neither 1 nor 2
Description : Consider the following statements: 1. Biodiversity hots pots are located only in tropical regions. 2. India has four biodiversity hots pots, i.e., Eastern Himalayas, Western Himalayas, Western Ghats and Andaman and Nicobar Islands. Which ... (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2
Description : Consider the following statements: 1. In the wet temperate forests at above 1500 m on the Nilgiris and Anaimalais, the Magnolias and Rhododendrons are commonly found. 2. Tropical dry evergreen forests are mostly found in Andhra Pradesh, ... (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2
Description : Consider the following statements: 1. In India, Red Panda is naturally found in the Western Himalayas only. 2. In India, Slow Loris lives in the dense forests of the North East. Which of the statements given above is/are correct? [IAS 2007] (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2
Last Answer : Ans: (b)